Non-standard screws, long screws, micro screws manufacturer / supplier in China, offering Nylon Countersunk Phillips Screw Factory Flat Head Nail Transparent Flat Head Plastic Insulated Screw Bolt M2 M3 M4-M8, M5 M6 M8 M10 Dia=6/8/10/12mm High Tensile Grade 12.9 Steel Hex Hexagon Socket Cap Head Shoulder Roller Bearing Screw Bolt, GB31.1 A2 A4 304 316 Stainless Steel Hexagon Bolts with Split Pin Hole on Shank M3 M4 M5 M6 M8 10m M12 M14 M16 and so on.